Analysis of Propagation Characteristics according to the Change of Transmitter-Receiver Location in Indoor Environment

The radio wave propagation characteristics of the transmitter and receiver position change in the indoor environment were predicted through simulation, then the results obtained through the transmission loss measurement were compared and analyzed with the simulation results. The conference room was chosen as the environment for measuring transmission loss, and the radio transmission characteristics of the two environments were compared by selecting the exhibition hall without interior decorations and fixtures. In each indoor environment, the position of the transmitter chose two cases. One located in the center of the front wall and the other in the center of the side wall, and the position of the receiver moved along the centerline of the conference room and the side wall, measuring the receiving power. For each change in transmitter-receiver position, received power of 3GHz and 6GHz band were measured and compared with the simulation forecast results. The changes in received power at each receiving point were analyzed according to the location of the transmitter and the frequency band variation. 키워드 Indoor Propagation, Propagation Characteristic, Propagation Prediction Model, Transmission Loss 실내 전파, 전파 특성, 전파 예측 모델, 전송 손실 * 한국전자파학회 (seonghoonyi@naver.com) ** 순천대학교 전기전자공학부 (blcho@scnu.ac.kr) *** 교신저자 : 조선대학교 전자공학과 ᆞ접 수 일 : 2019. 12. 12 ᆞ수정완료일 : 2020. 02. 12 ᆞ게재확정일 : 2020. 04. 15 ᆞReceived : Dec. 12, 2019, Revised : Feb. 12, 2020, Accepted : Apr. 15, 2020 ᆞCorresponding Author : Hwa-Choon Lee Dept. of Electronic Engineering, Chosun University. Email : orut00@naver.com Regular paper Journal of the KIECS. pp. 211-218, vol. 15, no. 2, Apr. 30. 2020, t. 100, pISSN 1975-8170 | eISSN 2288-2189 http://dx.doi.org/10.13067/JKIECS.2020.15.2.211 JKIECS, vol. 15, no. 02, 211-218, 2020